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US 11,990,274 B2Granted
Electromagnetic solenoid actuator and method for operation of an electromagnetic solenoid actuator
AssigneeDana Automotive Systems Group, LLC
InventorsSagar B. Bangar, Michael Z. Creech
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Abstract
Methods and systems are provided for operating a solenoid actuator to engage and/or disengage a torque transmission member of a vehicle transmission. In one example, a method may include increasing the holding force of the solenoid actuator. Additionally, the solenoid actuator may include a translatable structural element that creates a moment upon touching another structural element holding the translatable element in a locked position.
Claims13
A method, comprising:
- engaging a torque transmission member of a vehicle transmission via a solenoid actuator, the solenoid actuator including a translatable structural element to effect the engagement, where the translatable structural element is linearly moved along a central axis until it touches a surface, wherein contact between the translatable structural element and the surface creates a moment that tilts the structural element along a tilt axis to lock the structural element in place via a frictional force, the tilt axis offset from the central axis.
A method, comprising:
- increasing current to a solenoid actuator to engage a torque transmission member of a vehicle transmission, including:
- first linearly translating a translatable structural element against a spring, wherein the translatable structural element is an armature, and
- second, after initial linear translation, tilting the translatable structural element to lock the translatable structural element in place;
- and
- reducing the current while friction maintains the translatable structural element to maintain engagement of the torque transmission member.
2 more elements
Dependencies are inferred from the claim text.